Finding the Fourth Proportional to 79,207.11, 118,527.54 and 68,799.75
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Solution
The fourth proportional to 79,207.11, 118,527.54 and 68,799.75 is: 102,953.70
Step by Step Solution
- Step 1: Write the proportion equation
79,207.11 : 118,527.54 = 68,799.75 : x - Step 2: Convert to fraction form
79,207.11/118,527.54 = 68,799.75/x - Step 3: Cross multiply
79,207.11x = 118,527.54 × 68,799.75 - Step 4: Simplify right side
79,207.11x = 8,154,665,120.12 - Step 5: Solve for x
x = 8,154,665,120.12/79,207.11 - Step 6: Final answer
x = 102,953.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.